JPS6199409A - 音響フイルタ - Google Patents

音響フイルタ

Info

Publication number
JPS6199409A
JPS6199409A JP60228557A JP22855785A JPS6199409A JP S6199409 A JPS6199409 A JP S6199409A JP 60228557 A JP60228557 A JP 60228557A JP 22855785 A JP22855785 A JP 22855785A JP S6199409 A JPS6199409 A JP S6199409A
Authority
JP
Japan
Prior art keywords
comb
frequency
transducer
filter
acoustic filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP60228557A
Other languages
English (en)
Japanese (ja)
Inventor
ペーター、チビス
リヒアルト、フアイト
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
Publication of JPS6199409A publication Critical patent/JPS6199409A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6426—Combinations of the characteristics of different transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Thermistors And Varistors (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filters And Equalizers (AREA)
JP60228557A 1984-10-18 1985-10-14 音響フイルタ Pending JPS6199409A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843438246 DE3438246A1 (de) 1984-10-18 1984-10-18 Akustisches wellenfilter
DE3438246.1 1984-10-18

Publications (1)

Publication Number Publication Date
JPS6199409A true JPS6199409A (ja) 1986-05-17

Family

ID=6248242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60228557A Pending JPS6199409A (ja) 1984-10-18 1985-10-14 音響フイルタ

Country Status (6)

Country Link
US (1) US4703290A (de)
EP (1) EP0178655B1 (de)
JP (1) JPS6199409A (de)
AT (1) ATE55520T1 (de)
CA (1) CA1240006A (de)
DE (2) DE3438246A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3001349B2 (ja) * 1993-05-19 2000-01-24 日本電気株式会社 弾性表面波フィルタ
JP3154402B2 (ja) * 1997-11-12 2001-04-09 日本電気株式会社 Ｓａｗフィルタ
JP2001136048A (ja) * 1999-11-09 2001-05-18 Nec Corp 弾性表面波フィルタ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550045A (en) * 1969-06-25 1970-12-22 Zenith Radio Corp Acoustic surface wave filter devices
US3882433A (en) * 1974-02-15 1975-05-06 Zenith Radio Corp Swif with transducers having varied duty factor fingers for trap enhancement
US3987376A (en) * 1974-03-22 1976-10-19 Hazeltine Corporation Acoustic surface wave device with harmonic coupled transducers
DE2615719A1 (de) * 1976-04-09 1977-10-27 Siemens Ag Filter nach dem oberflaechenwellenprinzip
US4075582A (en) * 1976-06-14 1978-02-21 International Business Machines Corporation Surface acoustic wave device
DE2909705C2 (de) * 1979-03-12 1984-09-06 Siemens AG, 1000 Berlin und 8000 München Akustische Oberflächenwellenanordnung
US4315228A (en) * 1980-07-03 1982-02-09 Westinghouse Electric Corp. Multiple co-surface acoustic wave filters

Also Published As

Publication number Publication date
EP0178655B1 (de) 1990-08-08
US4703290A (en) 1987-10-27
ATE55520T1 (de) 1990-08-15
DE3579097D1 (de) 1990-09-13
EP0178655A2 (de) 1986-04-23
EP0178655A3 (en) 1987-04-29
DE3438246A1 (de) 1986-04-24
CA1240006A (en) 1988-08-02

Similar Documents

Publication Publication Date Title
US6420946B1 (en) Surface acoustic wave arrangement with a junction region between surface acoustic wave structures having a decreasing then increasing finger period
US5646584A (en) Saw filter including electrodes of opposing polarity
JP2703891B2 (ja) 表面弾性波フィルタ
US7023300B2 (en) Surface wave devices with low passband ripple
JPH06334476A (ja) 弾性表面波フィルタ
US6472959B1 (en) Longitudinally coupled double mode resonator filters using shallow bulk acoustic waves
JP2560991B2 (ja) 弾性表面波フィルタ
JPS6223490B2 (de)
WO2022071062A1 (ja) 弾性波装置
US4902925A (en) Reflectionless transducer
US5670920A (en) Multi-track SAW filter with reflectors and reversed polarity IDT connections
US5818310A (en) Series-block and line-width weighted saw filter device
JPS6199409A (ja) 音響フイルタ
JPH05347535A (ja) 弾性表面波フィルタ装置
JPH026670Y2 (de)
JPS5972816A (ja) 弾性表面波装置
JPS6231860B2 (de)
JPH047607B2 (de)
JP3137064B2 (ja) 弾性表面波フィルタ
US6335584B1 (en) Edge reflection type surface acoustic wave device
EP0763889A1 (de) Akustisches oberflächenwellenfilter
EP0255263A2 (de) Wandler
US3999153A (en) Acoustic surface wave filter
JP3196499B2 (ja) 表面波共振子
JP3436812B2 (ja) 弾性表面波変換器